Avenionia bourguignati is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Description The length of the shell attains 2.5 mm, its diameter 1 mm.
(Original description in French) The shell is subcylindrical and somewhat short, consisting of four to five fairly convex whorls that increase rapidly in size. The body whorl is slightly ventricose at the top, and the suture is well-marked. The umbilical chink is very narrow, and the aperture is suboval and only slightly oblique. The shell itself is encrusted and blackish in color.
Distribution This species is found in central France and the Netherlands. It is known from freshwater springs.https://www.gbif.org/occurrence/search?taxon_key=4560811 Gbif.org: distribution]
Synonyms
References
Glöer P. (2022). The freshwater gastropods of the West Palaearctis. Identification key, Anatomy, Ecology, Distribution. III. Hydrobiidae. Hetlingen: The author. 528 pp.
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